Home / 218,051.20-327,203.71-91,682.29

Finding the Fourth Proportional to 218,051.20, 327,203.71 and 91,682.29

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Solution

The fourth proportional to 218,051.20, 327,203.71 and 91,682.29 is: 137,576.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,051.20 : 327,203.71 = 91,682.29 : x
  2. Step 2: Convert to fraction form
    218,051.20/327,203.71 = 91,682.29/x
  3. Step 3: Cross multiply
    218,051.20x = 327,203.71 × 91,682.29
  4. Step 4: Simplify right side
    218,051.20x = 29,998,785,788.89
  5. Step 5: Solve for x
    x = 29,998,785,788.89/218,051.20
  6. Step 6: Final answer
    x = 137,576.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.